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2 years ago

8. Which of the following best describes an object with constant velocity?

Mathematics

2 answers:

NNADVOKAT [17]2 years ago

7 0

Answer:

a = 0

Step-by-step explanation:

The answer choices were found else where.

To have a constant velocity, we need to have an acceleration that is equal to 0. This is because if we have a sudden movement it will make the line on a graph go up dramatically then after the acceleration, the line will go back down because the velocity will drop. That will cause the velocity not to be consistent and in this case we need it to be.

Best of Luck!

netineya [11]2 years ago

4 0

C. Its acceleration is zero.

Step-by-step explanation:

Velocity is defined as the change in distance over time;

d₂- d₁ / t whereby;

d₂ – final distance

d₁ - initial distance

t - time

Acceleration, on the other hand, is the change in velocity over time;

Δv / t whereby;

v – velocity

t – time

When velocity is constant, change in velocity (Δv) is zero (0).

Therefore for acceleration to be zero (0), change in velocity has to be zero because;

Only when a = 0/t is zero (0)

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2. Consider the function, f(x)=x^3+x^2-9x-9

Sedaia [141]

The intercepts of the graph are:

x-axis interception: $\left(-1,\:0\right),\:\left(-3,\:0\right),\:\left(3,\:0\right)$ .

y-axis interception: $\left(0,\:-9\right)$ .

See the graph of the function $f(x)=x^3+x^2-9x-9$ in the attached image.

<h3>Constructing a graph</h3>

For constructing a graph we have the following steps:

Determine the range of values for x of your graph.

For this exercise, for example, we can define a range -4<x<4. In others words, the values of x will be in this interval.

Determine the points

Replace these x-values in the given equation. For example:

When x=-4, we will have: $\left(-4\right)^3+\left(-4\right)^2-9\left(-4\right)-9=-21$ . Do this for the all x-values of your ranges.

See the results for this step in the attached table.

Draw the graph

Mark the points <u>x</u> and<u> y</u> that you found in the last step. After that, connect the dots to draw the graph.

The attached image shows the graph for the given function.

<h3>Find the x- and y-intercepts</h3>

The intercepts are points that crosses the axes of your plot. From your graph is possible to see:

x-axis interception points (y=f(x)=0) are: $\left(-1,\:0\right),\:\left(-3,\:0\right),\:\left(3,\:0\right)$ .

y-axis interception point (x=0) is: $\left(0,\:-9\right)$ .

Learn more about intercepts of the graph here:

brainly.com/question/4504979

5 0

2 years ago

Algebra 2 help please

suter [353]

Blank 1: 3

Blank 2: 27

Blank 3: 21

you have to distribute the three to everything inside the parenthesis, and because it's directly in front of the parenthesis it's being multiplied.

3(x - 9) = 3x - 27

Now you need to isolate the y, in this e ample you need to add 6 to both sides

the final equation should be:

y = 3x - 21

7 0

1 year ago

Josie can solve 4/3 rubix cubes in 1/6 of an hour. How many rubix cubes can she solve an in hour please help

777dan777 [17]

Answer:

Step-by-step explanation:

So 1/6 of an hour is 10 minutes and 3/4 of a Rubiks cube is technically 1 1/4 so in an hour she can solve five in an hour

3 0

2 years ago

Solve the equations

Minchanka [31]

Answer:

#1 - All real numbers are solutions.

#2 - All real numbers are solutions.

Step-by-step explanation:

#1 -

Let's solve your equation step-by-step.

12(6t−4)=3t−2

Step 1: Simplify both sides of the equation.

12(6t−4)=3t−2

(12)(6t)+(12)(−4)=3t+−2(Distribute)

3t+−2=3t+−2

3t−2=3t−2

Step 2: Subtract 3t from both sides.

3t−2−3t=3t−2−3t

−2=−2

Step 3: Add 2 to both sides.

−2+2=−2+2

0=0

Same for #2

8 0

2 years ago

The number 3,456,120 is divisible by which number from 1 to 10

Paha777 [63]

It is divisible by 1, 2, 3, 4, 5, 6, 8, 10

6 0

2 years ago